567 lines
17 KiB
Vue
567 lines
17 KiB
Vue
<template>
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<view class="con">
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<template v-if="viewWidth">
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<movable-area class="area" :style="{ height: areaHeight }" @mouseenter="mouseenter" @mouseleave="mouseleave">
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<movable-view v-for="(item, index) in imageList" :key="item.id" class="view" direction="all" :y="item.y"
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:x="item.x" :damping="40" :disabled="item.disable" @change="onChange($event, item)"
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@touchstart="touchstart(item)" @mousedown="touchstart(item)" @touchend="touchend(item)"
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@mouseup="touchend(item)" :style="{
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width: viewWidth + 'px',
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height: viewWidth + 'px',
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'z-index': item.zIndex,
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opacity: item.opacity
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}">
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<view class="area-con" :style="{
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width: childWidth,
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height: childWidth,
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borderRadius: borderRadius + 'rpx',
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transform: 'scale(' + item.scale + ')'
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}">
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<image @click="previewImage(item)" class="pre-image" :src="item.src" mode="aspectFill"></image>
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<view class="del-con" @click="delImages(item, index)" @touchstart.stop="delImageMp(item, index)"
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@touchend.stop="nothing()" @mousedown.stop="nothing()" @mouseup.stop="nothing()">
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<view class="del-wrap">
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<image class="del-image"
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src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACEAAAAhCAYAAABX5MJvAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAhdEVYdENyZWF0aW9uIFRpbWUAMjAyMDowNzoyNSAyMTo1NDoyOU4TkJAAAADcSURBVFhH7ZfRCoMwDEXLvkjwwVf/bH/emmAyN6glTW9WBjsgwm28OeCLpj81Sil7zvlJ90UiONS/yY5VogsO6XrBg3IEQ5a/s8vRSWUAKmLqp2w5jz5BiNQEGMo3GbloDLtFXJ1IkaEuhAiiY6gEIqB4yqACSk9piIBiKQ8VUFpLviKg3C2rESKgWERCBZSWiEfgIfffYvrrsAgoISJ3Apy3zuTxcSxLQkV6ykNEPKVQkZEyiAiiZKgDIaC4upACSlcn5fM/+WuDCAHF1E/Z/N9AhkMZnPNDPI+UDjPIXgAQIGjNAAAAAElFTkSuQmCC">
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</image>
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</view>
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</view>
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</view>
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</movable-view>
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<view class="add" v-if="imageList.length < number"
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:style="{ top: add.y, left: add.x, width: viewWidth + 'px', height: viewWidth + 'px' }" @click="addImages">
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<view class="add-wrap" :style="{ width: childWidth, height: childWidth, borderRadius: borderRadius + 'rpx' }">
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<image style="width: 54rpx;height: 54rpx;"
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src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAA2CAYAAACMRWrdAAABIUlEQVRoQ+2a2w2DMAxFeQzWrsMUbadAsEw3S1CqVgppKwLX8BEOP4iHTXx8uUgWdVXoVhdaV0VhSmf7vr/H8V3XzY6V3P9iD+nYOI5P7/01LMI596AwoZV0TIBXIUWFXhKLFBWYSFGhhxQN6SFFQ5i4ogITKSr0cEVDekjRECauqMBEigq9U7piOk2yAti27SUe5ljlTfPEQ6KZecTvwl4P3ytvOv06R2HDMNzes7+6aRrvnHvtf50L13Lp50rx88zcvNlS3JpwKQ67XyK04nq2nFbk/LqVjin0TvmBNgQ2S4UUDcliHgpMpKjQwxUN6SFFQ5i4ogITKSr0cEVDekjRECauqMAsVoph+hVPtYr5+03p9tbYQ96xrYtT4ootbAJGVxxVTapVswAAAABJRU5ErkJggg==">
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</image>
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</view>
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</view>
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</movable-area>
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</template>
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</view>
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</template>
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<script>
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import FileApi from '@/sheep/api/infra/file';
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export default {
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emits: ['input', 'update:modelValue'],
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props: {
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// 排序图片
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value: {
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type: Array,
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default: function() {
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return []
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}
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},
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// 排序图片
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modelValue: {
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type: Array,
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default: function() {
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return []
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}
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},
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// 从 list 元素对象中读取的键名
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keyName: {
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type: String,
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default: null
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},
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// 选择图片数量限制
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number: {
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type: Number,
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default: 6
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},
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// 图片父容器宽度（实际显示的图片宽度为 imageWidth / 1.1 ），单位 rpx
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// imageWidth > 0 则 cols 无效
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imageWidth: {
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type: Number,
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default: 0
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},
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// 图片列数
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cols: {
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type: Number,
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default: 3
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},
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// 图片圆角，单位 rpx
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borderRadius: {
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type: Number,
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default: 0
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},
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// 图片周围空白填充，单位 rpx
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padding: {
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type: Number,
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default: 10
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},
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// 拖动图片时放大倍数 [0, ∞)
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scale: {
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type: Number,
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default: 1.1
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},
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// 拖动图片时不透明度
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opacity: {
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type: Number,
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default: 0.7
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},
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// 自定义添加
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addImage: {
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type: Function,
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default: null
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},
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// 删除确认
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delImage: {
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type: Function,
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default: null
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}
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},
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data() {
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return {
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imageList: [],
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width: 0,
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add: {
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x: 0,
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y: 0
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},
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colsValue: 0,
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viewWidth: 0,
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tempItem: null,
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timer: null,
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changeStatus: true,
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preStatus: true,
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first: true,
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}
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},
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computed: {
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areaHeight() {
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let height = ''
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// return '355px'
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if (this.imageList.length < this.number) {
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height = (Math.ceil((this.imageList.length + 1) / this.colsValue) * this.viewWidth).toFixed() + 'px'
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} else {
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height = (Math.ceil(this.imageList.length / this.colsValue) * this.viewWidth).toFixed() + 'px'
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}
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console.log('areaHeight', height)
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return height
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},
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childWidth() {
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return this.viewWidth - this.rpx2px(this.padding) * 2 + 'px'
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},
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},
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watch: {
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value: {
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handler(n) {
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if (!this.first && this.changeStatus) {
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console.log('watch', n)
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let flag = false
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for (let i = 0; i < n.length; i++) {
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if (flag) {
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this.addProperties(this.getSrc(n[i]))
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continue
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}
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if (this.imageList.length === i || this.imageList[i].src !== this.getSrc(n[i])) {
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flag = true
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this.imageList.splice(i)
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this.addProperties(this.getSrc(n[i]))
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}
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}
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}
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},
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deep: true
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},
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modelValue: {
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handler(n) {
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if (!this.first && this.changeStatus) {
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console.log('watch', n)
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let flag = false
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for (let i = 0; i < n.length; i++) {
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if (flag) {
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this.addProperties(this.getSrc(n[i]))
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continue
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}
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if (this.imageList.length === i || this.imageList[i].src !== this.getSrc(n[i])) {
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flag = true
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this.imageList.splice(i)
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this.addProperties(this.getSrc(n[i]))
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}
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}
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}
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},
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deep: true
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},
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},
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created() {
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this.width = uni.getSystemInfoSync().windowWidth
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},
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mounted() {
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const query = uni.createSelectorQuery().in(this)
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query.select('.con').boundingClientRect(data => {
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this.colsValue = this.cols
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this.viewWidth = data.width / this.cols
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if (this.imageWidth > 0) {
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this.viewWidth = this.rpx2px(this.imageWidth)
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this.colsValue = Math.floor(data.width / this.viewWidth)
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}
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let list = this.value
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// #ifdef VUE3
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list = this.modelValue
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// #endif
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for (let item of list) {
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this.addProperties(this.getSrc(item))
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}
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this.first = false
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})
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query.exec()
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},
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methods: {
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getSrc(item) {
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if(this.keyName !== null) {
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return item[this.keyName]
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}
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return item
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},
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onChange(e, item) {
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if (!item) return
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item.oldX = e.detail.x
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item.oldY = e.detail.y
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if (e.detail.source === 'touch') {
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if (item.moveEnd) {
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item.offset = Math.sqrt(Math.pow(item.oldX - item.absX * this.viewWidth, 2) + Math.pow(item.oldY - item
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.absY * this.viewWidth, 2))
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}
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let x = Math.floor((e.detail.x + this.viewWidth / 2) / this.viewWidth)
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if (x >= this.colsValue) return
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let y = Math.floor((e.detail.y + this.viewWidth / 2) / this.viewWidth)
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let index = this.colsValue * y + x
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if (item.index != index && index < this.imageList.length) {
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this.changeStatus = false
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for (let obj of this.imageList) {
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if (item.index > index && obj.index >= index && obj.index < item.index) {
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this.change(obj, 1)
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} else if (item.index < index && obj.index <= index && obj.index > item.index) {
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this.change(obj, -1)
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} else if (obj.id != item.id) {
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obj.offset = 0
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obj.x = obj.oldX
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obj.y = obj.oldY
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setTimeout(() => {
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this.$nextTick(() => {
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obj.x = obj.absX * this.viewWidth
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obj.y = obj.absY * this.viewWidth
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})
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}, 0)
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}
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}
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item.index = index
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item.absX = x
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item.absY = y
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if (!item.moveEnd) {
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setTimeout(() => {
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this.$nextTick(() => {
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item.x = item.absX * this.viewWidth
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item.y = item.absY * this.viewWidth
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})
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}, 0)
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}
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// console.log('bbb', JSON.parse(JSON.stringify(item)));
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this.sortList()
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}
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}
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},
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change(obj, i) {
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obj.index += i
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obj.offset = 0
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obj.x = obj.oldX
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obj.y = obj.oldY
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obj.absX = obj.index % this.colsValue
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obj.absY = Math.floor(obj.index / this.colsValue)
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setTimeout(() => {
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this.$nextTick(() => {
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obj.x = obj.absX * this.viewWidth
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obj.y = obj.absY * this.viewWidth
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})
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}, 0)
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},
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touchstart(item) {
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this.imageList.forEach(v => {
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v.zIndex = v.index + 9
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})
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item.zIndex = 99
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item.moveEnd = true
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this.tempItem = item
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this.timer = setTimeout(() => {
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item.scale = this.scale
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item.opacity = this.opacity
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clearTimeout(this.timer)
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this.timer = null
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}, 200)
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},
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touchend(item) {
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//this.previewImage(item)
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item.scale = 1
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item.opacity = 1
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item.x = item.oldX
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item.y = item.oldY
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item.offset = 0
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item.moveEnd = false
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setTimeout(() => {
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this.$nextTick(() => {
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item.x = item.absX * this.viewWidth
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item.y = item.absY * this.viewWidth
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this.tempItem = null
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this.changeStatus = true
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})
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// console.log('ccc', JSON.parse(JSON.stringify(item)));
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}, 0)
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// console.log('ddd', JSON.parse(JSON.stringify(item)));
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},
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previewImage(item) {
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if (this.timer && this.preStatus && this.changeStatus && item.offset < 28.28) {
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clearTimeout(this.timer)
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this.timer = null
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const list = this.modelValue
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let srcList = list.map(v => this.getSrc(v))
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console.log(list, srcList);
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uni.previewImage({
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urls: srcList,
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current: item.src,
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success: () => {
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this.preStatus = false
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setTimeout(() => {
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this.preStatus = true
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}, 600)
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},
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fail: (e) => {
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console.log(e);
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}
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})
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} else if (this.timer) {
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clearTimeout(this.timer)
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this.timer = null
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}
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},
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mouseenter() {
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//#ifdef H5
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this.imageList.forEach(v => {
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v.disable = false
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})
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//#endif
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},
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mouseleave() {
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//#ifdef H5
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if (this.tempItem) {
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this.imageList.forEach(v => {
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v.disable = true
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v.zIndex = v.index + 9
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v.offset = 0
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v.moveEnd = false
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if (v.id == this.tempItem.id) {
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if (this.timer) {
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clearTimeout(this.timer)
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this.timer = null
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}
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v.scale = 1
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v.opacity = 1
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v.x = v.oldX
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v.y = v.oldY
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this.$nextTick(() => {
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v.x = v.absX * this.viewWidth
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v.y = v.absY * this.viewWidth
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this.tempItem = null
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})
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}
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})
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this.changeStatus = true
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}
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//#endif
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},
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addImages() {
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if (typeof this.addImage === 'function') {
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this.addImage.bind(this.$parent)()
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} else {
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let checkNumber = this.number - this.imageList.length
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uni.chooseImage({
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count: checkNumber,
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sourceType: ['album', 'camera'],
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success: res => {
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this.uploadImage(checkNumber, res);
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}
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})
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}
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},
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async uploadImage(checkNumber, res) {
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let count = checkNumber <= res.tempFilePaths.length ? checkNumber : res.tempFilePaths.length
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for (let i = 0; i < count; i++) {
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var path = res.tempFilePaths[i];
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var result = await FileApi.uploadFile(path);
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this.addProperties(result.data);
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}
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this.sortList();
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},
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delImages(item, index) {
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if (typeof this.delImage === 'function') {
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this.delImage.bind(this.$parent)(() => {
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this.delImageHandle(item, index)
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})
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} else {
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this.delImageHandle(item, index)
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}
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},
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delImageHandle(item, index) {
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this.imageList.splice(index, 1)
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for (let obj of this.imageList) {
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if (obj.index > item.index) {
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obj.index -= 1
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obj.x = obj.oldX
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obj.y = obj.oldY
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obj.absX = obj.index % this.colsValue
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obj.absY = Math.floor(obj.index / this.colsValue)
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this.$nextTick(() => {
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obj.x = obj.absX * this.viewWidth
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obj.y = obj.absY * this.viewWidth
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})
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}
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}
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this.add.x = (this.imageList.length % this.colsValue) * this.viewWidth + 'px'
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this.add.y = Math.floor(this.imageList.length / this.colsValue) * this.viewWidth + 'px'
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this.sortList()
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},
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delImageMp(item, index) {
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//#ifdef MP
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this.delImages(item, index)
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//#endif
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},
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sortList() {
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console.log('sortList');
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const result = []
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let source = this.value
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// #ifdef VUE3
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source = this.modelValue
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// #endif
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let list = this.imageList.slice()
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list.sort((a, b) => {
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return a.index - b.index
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})
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for (let s of list) {
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let item = source.find(d => this.getSrc(d) == s.src)
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if (item) {
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result.push(item)
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} else {
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if(this.keyName !== null) {
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result.push({
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[this.keyName]: s.src
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})
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} else {
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result.push(s.src)
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}
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}
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}
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this.$emit("input", result);
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this.$emit("update:modelValue", result);
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},
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addProperties(item) {
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console.log(item);
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let absX = this.imageList.length % this.colsValue
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let absY = Math.floor(this.imageList.length / this.colsValue)
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let x = absX * this.viewWidth
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let y = absY * this.viewWidth
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this.imageList.push({
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src: item,
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x,
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y,
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oldX: x,
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oldY: y,
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absX,
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absY,
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scale: 1,
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zIndex: 9,
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opacity: 1,
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index: this.imageList.length,
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id: this.guid(16),
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disable: false,
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offset: 0,
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moveEnd: false
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})
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this.add.x = (this.imageList.length % this.colsValue) * this.viewWidth + 'px'
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this.add.y = Math.floor(this.imageList.length / this.colsValue) * this.viewWidth + 'px'
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},
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nothing() {},
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rpx2px(v) {
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return this.width * v / 750
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},
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guid(len = 32) {
|
|
const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')
|
|
const uuid = []
|
|
const radix = chars.length
|
|
for (let i = 0; i < len; i++) uuid[i] = chars[0 | Math.random() * radix]
|
|
uuid.shift()
|
|
return `u${uuid.join('')}`
|
|
}
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<style lang="scss" scoped>
|
|
.con {
|
|
// padding: 30rpx;
|
|
|
|
.area {
|
|
width: 100%;
|
|
|
|
.view {
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
|
|
.area-con {
|
|
position: relative;
|
|
overflow: hidden;
|
|
|
|
.pre-image {
|
|
width: 100%;
|
|
height: 100%;
|
|
}
|
|
|
|
.del-con {
|
|
position: absolute;
|
|
top: 0rpx;
|
|
right: 0rpx;
|
|
padding: 0 0 20rpx 20rpx;
|
|
|
|
.del-wrap {
|
|
width: 36rpx;
|
|
height: 36rpx;
|
|
background-color: rgba(0, 0, 0, 0.4);
|
|
border-radius: 0 0 0 10rpx;
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
|
|
.del-image {
|
|
width: 20rpx;
|
|
height: 20rpx;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
.add {
|
|
position: absolute;
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
|
|
.add-wrap {
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
background-color: #eeeeee;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
</style>
|